4.19-stable review patch. If anyone has any objections, please let me know.
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From: Ben Greear greearb@candelatech.com
commit 5c21e8100dfd57c806e833ae905e26efbb87840f upstream.
This fixes stale beacon-int values that would keep a netdev from going up.
To reproduce:
Create two VAP on one radio. vap1 has beacon-int 100, start it. vap2 has beacon-int 240, start it (and it will fail because beacon-int mismatch). reconfigure vap2 to have beacon-int 100 and start it. It will fail because the stale beacon-int 240 will be used in the ifup path and hostapd never gets a chance to set the new beacon interval.
Cc: stable@vger.kernel.org Signed-off-by: Ben Greear greearb@candelatech.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- net/mac80211/iface.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -1015,6 +1015,8 @@ static void ieee80211_do_stop(struct iee if (local->open_count == 0) ieee80211_clear_tx_pending(local);
+ sdata->vif.bss_conf.beacon_int = 0; + /* * If the interface goes down while suspended, presumably because * the device was unplugged and that happens before our resume,